Improvement in curtain-fixtures



PATENT OFFICE.

BENJAMIN MOSER, OF WALTHAM, ,MASSACHUSETTS IMPROVEMENT INCURTAIN-FIXTURES.

Speciiication forming part of Letters Patent No. 116,343, dated June 27,1871.

To all whom t may concern:

Be it known that I, BENJAMIN MosER, of Waltham, in the county ofMiddlesex and State of Massachusetts, have invented new and certainImprovements in Curtain-Fixtures and I do hereby declare that thefollowing is a full, clear, and exact description thereof, referencebeing had to the accompanying drawing forming part of thisspecification.

The present invention relates to that class of curtain-fixtures adaptedfor the dropping of the curtain-roller to any point desired in theheight of the window-frame, and there allow the curtain to be wound orunwound; and more particularly this invention relates to the improvedcurtain-fixtures secured to me by Letters Patent dated January l2, 1869,and numbered 85,842. The invention consists: First, of a pulley for thecurtain-cords, constructed With a loose Wheel or wheels, that, by meansof a spring properly applied to the pulley, can be more or less boundand held to prevent its too easy and free turning from the weight of thecurtain or its roller or both. Second, in combination with the part justpreceding, the use of a yielding presser-wheel adapted to bear on thecurtain-.cord of the said pulley, and to thereby balance or retain theshade in whatever position set. Third, of an endless cord for operatingcurtains when provided with a spiral spring forming a part of itscontinuity, for the purpose of maintaining the tension of the cord.

In the accompanying drawing my improvements in curtain-fixtures areillustrated, Figure I being a front elevation of a Window-frame providedwith a drop-fixture of the within invention Fig. 2, a side or edge view;Figs. 3, 4, 5, 6, and 7, views in detail.

. A in the drawing represents a window-frame; B, a curtain-roller havinga pulley at one end,

. and a bracket or plate, C, at both ends; a a, a

spring (see Fig. 3) particularly secured to one bracket, C, andpartially encircling the curtainroller to retain the roller from turningtoo freely; b, a spring at one bracket, U, this spring b being arrangedto produce a friction of bracket on end of curtain-roller to retain theroller from turning too freely; D and E, cords secured the one to thebracket at one end and the other to the bracket at the other end of thecurtain-roller, from which they are extended, the cord D over pulleys Fand G, and the cord E over pulley G and through eye d in plate H, fixedto window-frame. The ends D and E are joined at I. By pulling on thecord E the'roller B will be raised and lowered equally at both ends. J,a cord attached to roller-pulley, and passed around pulley G for windingor unwinding the shade; f, a spiral spring in a case, g, closed at oneend. To this spring f and case g v(see Fig. l) the cord E is connected,the spring and case making the continuity, and maintaining tension outhe curtain-cord and securing its certain operation. ,l The pulley Gisconstructed with the two loose wheels IL and t', held from a too freeturning when the pulley is screwed in place on the window by the spiralspring 7c. Over these loose wheels h and fi the several curtain-cords D,E, and I pass, and they are all grooved, and with one shown as providedin its groove with an India-rubber or other elastic ring, l, to secure agreater friction on and hug of the cord passing over it. L L, Wheelshung on a right-angular arm, M, fixed to the pulley G, so as to run onthe curtain-cords about the wheels h and i. This arm is provided with acoil spring, fm, in a similar manner to that described in my now'pendingapplication for improved curtain-fixture. The purpose of the arm M, withits spring m, is to secure a nipping or bite of the curtain-cords on thepulley-wheels h and i, preventing all possibility of slip of the cords,and securing the balancing of the shade. The cord E, in lieu of beingcontinued and attached to the lower end of roller-bracket C, as shown inFig. l, may be detached and nipped about the stationary plate H, beingput into the angular notch m of the same.

By the pressure of the spring k on the wheels h t their too free actionis prevented, and they can be tightened to hold suspended any curtain-or roller, and to secure a most perfect operation ofthe curtain. Inlieu of the spring 7c a weight may be employed and arranged eitherdirectly on the cords or the arm-carrying wheels L.

The springv action on the roller end is advantageous when thewinding-cord is not passed over the pulley Gr, but hangs loose; and thespring j is advantageous whether used alone or with any or more of thefeatures contained in this invention.

Having thus described my: improvements7 I The spiral spring j, havingease g, in comshall state 1n y claims, as follows: s f bination witheurEzLin-cord E secured both? t0 said l.. The loose Wheels hor '17, orboth, in eombinaspring and case, substantially as deseribed, for

` tion with :L spring, k, 01 its equivalent, subssau-k the purposespecified.

tially as described, for the purpose set fort-h..

' BENJAMIN MOSER. 2.: The presser-Wheel or wheels L, in combina-Vitnesses:

tionwth the third clause. of claims, substan- GHAs. I TAYLOR,

tally as and for the object specified. ALBERT W. BROWN.

